Sets the behavior of the text widget when the <kbd>Tab</kbd> key is pressed.
If accepts_tab is true, a tab character is inserted. If accepts_tab is
false the keyboard focus is moved to the next widget in the focus chain.
| this |
A `GtkTextView` |
| accepts_tab |
true if pressing the Tab key should insert a tab character, false , if pressing the Tab key should move the keyboard focus. |